Your a nerd when it comes to chess and you've basically beat everyone, except this random popular guy invited you to a quick chess match, you agreed thinking its an easy game, but he absolutely beat you fair and square

Resulting for you to get worried for your reputation as the smart kid in chess

Later on you saw as him walking with a teacher and he seemed to have told him about the chest match, you heard as the teacher ask who won, he smiled and answered

"She did."